<script setup lang="ts">
const props = withDefaults(
  defineProps<{
    bg?: string
    width?: string
    height?: string
    animated?: boolean
  }>(),
  {
    bg: '#efefef',
    width: '100px',
    height: '100px',
    animated: true
  }
)
</script>
<script lang="ts">
export default {
  name: 'Skeleton'
}
</script>
<template>
  <div class="skeleton" :style="{ width, height }" :class="{ shan: animated }">
    <!-- 1 盒子-->
    <div class="block" :style="{ backgroundColor: bg }"></div>
    <!-- 2 闪效果 skeleton 伪元素 --->
  </div>
</template>

<style lang="less" scoped>
.skeleton {
  display: inline-block;
  position: relative;
  overflow: hidden;
  vertical-align: middle;
  .block {
    width: 100%;
    height: 100%;
    border-radius: 2px;
  }
}
.shan {
  &::after {
    content: '';
    position: absolute;
    animation: shan 1.5s ease 0s infinite;
    top: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(
      to left,
      rgba(255, 255, 255, 0) 0,
      rgba(255, 255, 255, 0.3) 50%,
      rgba(255, 255, 255, 0) 100%
    );
    transform: skewX(-45deg);
  }
}
@keyframes shan {
  0% {
    left: -100%;
  }
  100% {
    left: 120%;
  }
}
</style>
